While they can be infuriating to talk to, sometimes it can be a bit fascinating to actually deconstruct the "mind set" of these people. I had a nice little chat (if you can call it that) with a flat earther a few weeks back. The content of the chat was garbage but the actual logic that this person used to justify their arguments was a bit fascinating. I concluded by the end of the conversation that he was probably mentally deficient or had an extreme personality disorder.